I am sold on the new GT5. It's car porn and fun. Yes, there's a few gripes with slow loads and menu system, but the sheer amount of stuff to do and collect is astounding. And of course the driving is great - go-karts are fun and feel close to the real thing from my limited karting experience. I also just raced a VW bus on the Top Gear test track followed by some timed practice laps in a Lamborghini.